Window lock



Aug. 25, 1925 S. HOROWITZ WINDOW LOOK Filed Dec. 10, 1924 m T N E V mPatented Aug. 25, 1925.

SIMON HOROVVITZ, OF NEW YORK, N. Y.

PATENT OFFICE.

WINDOW LOCK.

Application filed December 10, 1924. Serial No. 754,953.

To all whom it may concern:

Be it known that I, SIMON IIonowirz, a citizen of the United States ofAmerica, residing at New York city, county and State of New York, haveinvented certain new and useful Improvements in \Vindow Locks, of whichthe following is a specification.

This invention relates to window locks and in particular to one whichmay be placed on the lower sash of a window to securely engage the uppersash to lock the same.

A particular object of the invention is to provide a lock which willallow the window to be opened a short distance from the top or bottomand locked in open position so that air may be admitted to the roomwithoutpermitting the entrance of a thief.

A further object is to provide a device which may be used as a lock andwhich may also be used to prevent the sashes, which have became worn andloose, from rattling.

A still further object of the invention is to provide a device of thecharacter referred to which may be made up of few parts, withoutexcessive cost and one which will securely lock and hold a. window.

Referring to the drawing wherein I have shown a preferred embodiment ofmy invention;

Figure 1 is a view in perspective of a portion of an upper and lowersash of a window showing my improved lock applied thereto,

Figure 2 is a side elevation in section through the sashes and lockshowing the construction of the latter;

Figure 3 is a view in perspective of the special key used with the lock;and

Figure 1 is an enlarged side view partly in section showing the sashengaging memher and its connection to the adjusting screw.

Referring to the drawing in detail 5 in dicatcs the lower and 6 theupper sash of a window in which are held the usual panes of glass 7.

At one corner of the upper edge 8 of the lower sash 5 I attach mylocking device which consists of a bracket member 9 having a dependingportion 10, a base 11 and an upright portion 12.

The depending portion 10 is provided with a suitable opening in which isdisposed a screw 13 which holds the depending portion securely againstthe face of the sash, while a plurality of screws 14 are used tohold thebase 11 against the top of the sash,

Passing through a threaded opening 15 in the upright portion 12 of thebracket I pro vide a threaded rod 16 the outer end of which is squaredas at 17 to enter the socket 18 of a suitable key 19, the latter havingan extended shank 20 whereby it will it into the tubular protectivemember 21 which is attached at one end to the upright 12 and houses thesquared end 17 of the threaded rod 16.

This tubular member prevents any person from tampering with the lockunless they have the key and the key must of course have the long shanknecessary to extend into the tubular member to engage the squared end ofthe rod so that the same may be operated.

The outer end of the rod 16 is reduced in diameter and riveted over tohold the pronged member 22 which revolves loosely thereon, so that therod 16 can turn to force the member 22 into the upper sash 6 of thewindow.

The pronged member 22 sinks into the sash and of course prevents itsbeing lowered.

If desired the window is opened slightly from the top or bottom and thelock is adjusted to prevent further opening of the window.

The lock member also serves to prevent rattling of the sashes when thesame have become worn.

It is evident therefore that I have provided a window lock which has fewparts, which can not be tampered with, and which will securely lock thesashes in any relative position.

Having described my invention whatI claim is:

A look for windows comprising a member adapted for attachment to one ofthe sashes, a threaded rod passing through said member, a revolvablehead on one end of said rod, prongs on said head for engaging the othersash, a tubular housing for the op posite end of said rod, and a keyhaving an extended shank portion whereby the same may be inserted intosaid housing to operate said rod.

sIMON HOROWITZ.

